We are flying from Philadelphia US to Rome, then cruising Greece. Last flights will be from Athens to Paris, then back to Philadelphia. Any thoughts on timing for best airfares, and best websites to use? Looking for suggestions from seasoned travellers. Have used Kayak/ Expedia before. this trip is a little more involved, so any help appreciated. thanks.

does anyone knows a cheap air carrier offers low fare for the route from Bangkok to Taiwan? i intend to fly on 29 August and return on 3rd Sept. looking around some fare search such as expedia, orbitz but they return very expensive flights. thank you for your attention.